JPS5625191A - Preparation of high-purity water-soluble o,o-dialkyl dithiophosphate - Google Patents
Preparation of high-purity water-soluble o,o-dialkyl dithiophosphateInfo
- Publication number
- JPS5625191A JPS5625191A JP10071279A JP10071279A JPS5625191A JP S5625191 A JPS5625191 A JP S5625191A JP 10071279 A JP10071279 A JP 10071279A JP 10071279 A JP10071279 A JP 10071279A JP S5625191 A JPS5625191 A JP S5625191A
- Authority
- JP
- Japan
- Prior art keywords
- dialkyl dithiophosphate
- solvent
- compound
- salt
- aqueous layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To obtain the titled high-purity compound particularly useful as a raw material for an organic phosphorus agricultural chemical safely and simply, by reacting an O,O-dialkyl dithiophosphate with an alkali compound in a specific solvent, and recovering the salt in the separated aqueous layer.
CONSTITUTION: An O,O-dialkyl dithiophosphate of the formula (R is 1W4C lower alkyl) is reacted with an alkali compound in a solvent consisting of a fractionated component of crude oil having a boiling point of 40W350°C, e.g. petroleum ether, petroleum benzine or gasoline, to form a water-soluble salt. The aqueous layer is separated from the solvent layer to recover the salt from the aqueous layer and give the titled compound. An alkali metal hydroxide, alkaline earth metal hydroxide, etc. may be preferred as the alkali compound. The solvent dissolves only impurities, and will not dissolve in the aqueous solution of the O,O-dialkyl dithiophosphate to separate the ester suitably.
EFFECT: The aqueous solution of suitable concentration can be prepared economically.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10071279A JPS5839836B2 (en) | 1979-08-09 | 1979-08-09 | Method for producing high purity water-soluble 0,0-dialkyl dithiophosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10071279A JPS5839836B2 (en) | 1979-08-09 | 1979-08-09 | Method for producing high purity water-soluble 0,0-dialkyl dithiophosphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5625191A true JPS5625191A (en) | 1981-03-10 |
| JPS5839836B2 JPS5839836B2 (en) | 1983-09-01 |
Family
ID=14281269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10071279A Expired JPS5839836B2 (en) | 1979-08-09 | 1979-08-09 | Method for producing high purity water-soluble 0,0-dialkyl dithiophosphate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839836B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019793A (en) * | 1983-06-27 | 1985-01-31 | ザ ル−ブリゾル コ−ポレ−シヨン | Metal salt of lower dialkylphosphorodithio acid and lubricating agent composition containing same |
| CN101921293A (en) * | 2010-07-28 | 2010-12-22 | 潍坊世华化工有限公司 | Method for preparing dialkyl dithiophosphate |
-
1979
- 1979-08-09 JP JP10071279A patent/JPS5839836B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019793A (en) * | 1983-06-27 | 1985-01-31 | ザ ル−ブリゾル コ−ポレ−シヨン | Metal salt of lower dialkylphosphorodithio acid and lubricating agent composition containing same |
| JPH0545598B2 (en) * | 1983-06-27 | 1993-07-09 | Lubrizol Corp | |
| CN101921293A (en) * | 2010-07-28 | 2010-12-22 | 潍坊世华化工有限公司 | Method for preparing dialkyl dithiophosphate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5839836B2 (en) | 1983-09-01 |
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